Continuous pulp beater



Jan. 5 1926.

Filed AuguSt 20,

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-a' citizen of the the paper. lually introduced and the beaten pulp 'of beating or material to take place.

PATENT OFFICE.

KENNETH B. vIHOWE 0F MAPLEWOOD,

NEW JERSEY, ASSIGNOB TO THEBARBETT COMPANY, A CORPORATION OF NEW JERSEY'.-

coN'rrNUoUs PULP nanna.

y 'application mea August 2o, 192s. semi No. 658,206.

To all whom t may concern:

vBe it known that KENNETH B. HOWELL,

United States, residing at Maplewood, in the county of Essex and State of New Jersey, has invented certain new and useful Improvements in Continuous Pulp Beaters, of which the following is a specification.

`his invention relates to a pulp beater. It relates more particularly to a pulp beater in which the pulp making stock may be continuously fed and the` beaten pulp is automatically withdrawn or runs o when it has been beaten to the 'proper extent.

In devices of this character the beaters were formerly operated upon a batch 'of fibrous material or paper making pulp until the saine had been beaten to the proper extent and then the beaten pulp was with- `drawn and a new batch was beaten. Devices have also been' used in which portions of the pulp have been thrown off by means of the centrifugal force of the beater lo r the knives carried thereby, but in such cases it sometimes happens that portions of the stock that have been beaten to an insufficient extent were also thrown o and had the more inely divided material or vprod-nce objectionable results in the final paper. By the present invention making stock can be introduced' time or the same may be gradwill be drawn off when it? has been beaten to the desired extent. The device is especially applicable to beating old papers or other weak fibrous material, although it is not restricted to this sort of material as it isv also applicable to rag stock or wood stock or the like, the same requiring a longer period of operation for the proper amount disintegration of the fibrous all at one The invention will be understood from the descri tion in connection with the drawins, in w ich 1g. 1 is a plan view of the device partly broken away;

Fig. 2 is a section along the'line af-a of Fig. l; and l Fig. 3 is a plan View showing one of the details.

In the drawings, reference character 1 indicates the usual beater tub in whichthe v beater roll 2 is` located 'under the hcaodJ .3

' beingdriven by the shaft 4 8 therein, these vseparation into' smaller particles. percentage of the smaller particles will, as

and pulley 5 from any convenient source. culates in the` usual manner as indicated by the arrows when4 the beater roll 2 is in operation.

' Immediately below the beater roll .2 is located a perforated plate 7 having holes holes flaring outwardly in a downward direction. Instead of having a fiat plate 7 with perforations 8 therein, a reticulated member curved or otherwise suitably shaped or the equivalent may bc used with somewhat satisfactory results. The plate 7 is mounted so that a container or receptacle 9 will be therebeneath and an exit trough 10,1eads from the side of the container 9 through the wall of the'tub to the outside.

The operation is as follows:

The pul makin stock togetherv with waterwill. e intro uced into the tub 1 in the usual manner and the beater roll 2 will be set in operation.l The current of water and stock will be set u by the beater roll 2 in the direction of the arrows as is the yusual case and the stock will at times be drawn between the beater roll 2 and the perforated plate 8 and be 'dragged thereover thus undergoing disintegration or y A certain lthe same pass over the perforations 8 of the plate 7, fall throughthese perforations into receptacle 9 and then be .drawn olf through the trough 10. The particles that lare too coarse for passing through-the perforations 8 will -be circulated again an undergo further disintegration until the -same will be rendered small enough to fpass orathrough the perforations. The per tions 8 are made of such a size as not to permit passage therethrough of particles larger than are desired for the paper making and the sameV are flared outwardly atV the bottom to avoid clogging or plugging of' the perforations 8 with the fibrous material.

I claim:

1. In a pulp beater a horizontally disposed reticulated member located below the beater roll and adapted having a beater roll,

to permit the passage of beaten pulp there through.

2. In a pulp beater having a beater roll, a horizontally disposed perforated plate The pulp cirlocated in roximity to the beater roll to permit the passage of beaten pulp therewhereby sal roll will draw pulp over said through and a receptacle below said memplate. ber. e 15 3. In a pulp beater having a beater roll, 5. In a pulp beater having a beater roll,

a perforated plate located in proximity to a horizontally disposed reticulated member the beater roll whereby said roll will draw located below the beater roll `and adapted l direction.

pul over said plate, the perforation in to permit the passage of beaten pulp there;v

sai plate flaring outwardly 1n a downward through and means for continuously with; 20

y drawing the beaten pulp.

4. In a pulp beater having a beater roll, In testimony whereof I affix my signaa horizontally disposed reticulated member ture.

' located below the beater roll and adapted kKENN ETH B. HOWELL. y 

